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Slobodan Kovacevic

Slobodan Kovacevic

Member since September 2, 2013
Slobodan is a senior web developer and programmer with over a decade of experience working on the web. He is passionate about Ruby and Ruby on Rails. He can work in different roles, ranging from an individual developer to technical team lead to project manager.
Slobodan is now available for hire
  • Agile Software Development, 7 years
  • Ruby on Rails (RoR), 7 years
  • Ruby, 7 years
  • Continuous Integration (CI), 7 years
  • Amazon Web Services (AWS), 5 years
  • Heroku, 5 years
  • Go, 1 year
  • Ember.js, 1 year
Preferred Environment
OS X, Git, Vim
The most amazing...
...thing I've done is to refactor an existing app achieving 10x speed-up
  • Ruby Developer GmbH
    2012 - PRESENT
    • Created a JSON service-based architecture for running multiple sites.
    • Refactored most of the existing code.
    • Created a Rails engine with common functionality shared by multiple sites.
    • Streamlined the deployment process.
    • Implemented performance improvements on and
    Technologies: Ruby, Ruby on Rails
  • Senior Ruby/Rails Engineer
    Reciprocity Inc.
    2011 - PRESENT
    • Optimized and further developed the Reciprocity gamification app.
    • Worked on a Google sponsored GRC open source project.
    • Implemented a new Refinery-based CMS for
    • Maintained
    • Worked from Google in Mountain View and SF.
    Technologies: Ruby, Ruby on Rails, AWS, S3, Heroku, Amazon RDS
  • Freelance Ruby/Rails Web Developer
    Orange Iceberg
    2008 - 2011
    • Freelanced on many different projects.
    • Worked on,,, and
    Technologies: Ruby, Ruby on Rails, Heroku, Amazon RDS, AWS, S3
  • CEO, Lead Developer, Co-founder
    Array Studio
    2001 - 2008
    • Led a team of developers and designers.
    • Handled project management tasks.
    Technologies: Ruby, Ruby on Rails, PHP
  • (Development)

    Custom-built a CMS with shared functionality and API service for directory style listings for yoga centers. API service is designed to run multiple content sites through it using RESTful JSON interface.

  • (Development)

    Custom-built a CMS for directory style listings for ayurveda centers. Uses API service built for which is designed to run multiple content sites through it using RESTful JSON interface.

  • Reciprocity (Development)

    Reciprocity is a gamification application helping companies engage their teams in different areas, provide feedback, recognize and award efforts. It features a social newsfeed, different types of updates, ability to like and recognize other people, and recognition economy where you spend your points to recognize other people.

  • (Development)

    Perform maintenance tasks and adding new sections to a custom CMS built for allowing client to change certain parts of public facing site.

  • (Development)

    Custom CMS built on top of Refinery CMS platform. It also has custom Refinery extensions for shopping cart, payment processing through PayPal (PayPal express and PayPal advanced payments [on-site]) and several 3rd party service integrations (such as Oracle's Eloqua).

  • (Development)

    An artist community and online gallery space. It enables artists to create their online galeries, choose between different templates, upload artwork, comment artwork, interact with other artists and visitors.

  • (Development)

    An online shop for fishing equipment. Custom-built from ground up with product catalog, integration with warehouse software (for stock levels), customer registration system and different payment methods (online through local card processing bank and offline transfers).

  • Languages
    Ruby, Haml, SQL, Sass, CSS, HTML, JavaScript, Go
  • Frameworks
    Ruby on Rails (RoR), Bootstrap, Ember.js
  • Libraries/APIs
    Devise, PayPal API, jQuery, Amazon API, Twitter API, jQuery UI
  • Tools
    Jekyll, Git, GitHub Pages, GitHub, AWS SES, AWS IAM, Vim Text Editor, MacVim, Amazon CloudFront CDN
  • Paradigms
    Object-oriented Programming (OOP), Model View Controller (MVC), Agile Software Development, Continuous Integration (CI), Test-driven Development (TDD)
  • Platforms
    Mac OS, Mac, Heroku, Amazon Web Services (AWS), AWS EC2, Ubuntu, Linux
  • Storage
    AWS RDS, MySQL, AWS S3, SQLite, PostgreSQL, Redis, MongoDB, Memcached, NoSQL
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